Estimation
Estimate the answer: 42+67
What is 110?
27 rounded to the nearest 10.
What is 30?
76+89=
What is 165?
88-29=
What is 59?
Ms. Heronemus baked 283 cookies on Friday. On Saturday she baked 187 cookies. How many more cookies did she bake on Friday than on Saturday?
What are 96 more cookies on Friday?
Estimate the answer: 142+157
What is 300?
124 rounded to the nearest 10.
What is 120?
127+183=
What is 310?
189-178=
What is 11?
George says that 367 + 429 is about 1,000. Do you agree or disagree?
I disagree because the sum is closer to 800.
Estimate the answer: 432+355
What is 790?
1,325 rounded to the nearest 10.
What is 1,330?
278+567
What is 845?
600-241=
What is 359?
Which two numbers have a sum closest to 1,000?
327 482 600 398
What are 600 and 398?
Estimate the answer: 278-165
What is 110?
2,344 rounded to the nearest 100.
What is 2,300?
542+163=____+161
What is 540?
625 - 48 = 630 -___
What is 53?
The library has 762 books. Belle, an avid reader, checked out 163 books. Then, the library received a shipment of 322 books. How many books are in the library?
What are 921 books?
Estimate the answer: 965-532
What is 440?
2,478 rounded to the nearest 100.
What is 2,500?
728+142=____+140
What is 726?
___ - 270 = 727 - 268
What is 729?
Anna and Elsa collect cans to recycle. Anna has 275 cans and Elsa has 168 cans. On their way to the recycling center, their bag breaks and 89 cans fall out. How many cans do they have now?
What are 354 cans?